diff --git a/src/ks-upa b/src/ks-upa
index 75730c6..1ef96ab 100755
--- a/src/ks-upa
+++ b/src/ks-upa
@@ -659,7 +659,7 @@ function showHelp() {
 # for the execution are installed.
 function checkDependencies() {
   path_check="/usr/bin /bin /usr/local/bin ${HOME}/.local/bin"
-  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat"
+  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat ssh-keyscan"
   dependencies_found=""
   dependencies_not_found=""
   for checkPath in ${path_check} ; do
diff --git a/src/ks-upf b/src/ks-upf
index d0e476a..3200a3a 100755
--- a/src/ks-upf
+++ b/src/ks-upf
@@ -686,7 +686,7 @@ function showHelp() {
 # for the execution are installed.
 function checkDependencies() {
   path_check="/usr/bin /bin /usr/local/bin ${HOME}/.local/bin"
-  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat"
+  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat ssh-keyscan"
   dependencies_found=""
   dependencies_not_found=""
   for checkPath in ${path_check} ; do
diff --git a/src/ks-upr b/src/ks-upr
index a0c07b1..ab42b5e 100755
--- a/src/ks-upr
+++ b/src/ks-upr
@@ -563,7 +563,7 @@ function showHelp() {
 # for the execution are installed.
 function checkDependencies() {
   path_check="/usr/bin /bin /usr/local/bin ${HOME}/.local/bin"
-  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat"
+  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat ssh-keyscan"
   dependencies_found=""
   dependencies_not_found=""
   for checkPath in ${path_check} ; do
diff --git a/src/ks-upv b/src/ks-upv
index 77d7367..2396bb8 100755
--- a/src/ks-upv
+++ b/src/ks-upv
@@ -659,7 +659,7 @@ function showHelp() {
 # for the execution are installed.
 function checkDependencies() {
   path_check="/usr/bin /bin /usr/local/bin ${HOME}/.local/bin"
-  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat"
+  dependencies="sshpass expect rsync md5sum scp ssh find grep sed cut head tail cat ssh-keyscan"
   dependencies_found=""
   dependencies_not_found=""
   for checkPath in ${path_check} ; do